I know zilch about these things so please keep it as basic as possible. I bought a 50W room air filter for my bedroom and would like to use it in the MH, as well, even when dry camping using my little 100W inverter. Question: How many amp-hours will it use to run it, say, for seven hours at night? Thank you.
2000 Born Free 24RB Class C
6.8L Ford V-10 Engine, E450 Chassis
2002 Honda CR-V toad
Roadmaster Sterling A/T towbar
VIP braking system
Eddyline Merlin kayak
Some years ago I did a whole bunch of math, it included the average effiency of an inverter, and a bunch of other stuff....
Found out that using the "Divide watts by 10" method Don suggested.
Works great
50 watts / 10 volts = 5 amps times 7 hours = 35 amp= hours Times 2 to be safe = one group 24 battery or larger. (G-24 if it is the ONLY thing running on batterie.
The rule is you can use 1/2 of a deep cycle battery, only about 1/4 of a marine/deep cycle and still be safe.
A pair of GC-2 Golf car batteries in series. that is 230 amp h ours, 115 usable and a very good choice for your installation
Nothin adds excitment like something that is none of your business
Kenwood TS-2000 housed in a 2005 Damon Intruder 377
Yep. What the last poster said. You can't/shouldn't drain the battery to less than 50% of full capacity. So if it is fully charged before you use it (fully means 100%, not 90%, stupid green light on panel is not too accurate), and air filter is the ONLY thing that this battery is used for, then it draws 40 Ah in 7 hours (inverter needs some juice for itself) and you need 80 Ah battery. Better make it 90 Ah. Again, this is if there is NOTHING else running off this battery, just air filter.
Not sure if you are making a statement or asking a question Piano fish, but if it's a question the answer is yes. It does, and a slight bit more. (just to play safe) plus the O/P said "keep it easy" and not much is easier than divide by 10.
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